The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming. Given: The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time. The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other. Introduction: Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Question

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Answer 1

Question

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

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Students have asked these similar questions

A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.

With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

Answer 2

Question

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

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Answer 3

Question

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

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Answer 4

Question

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

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Answer 5

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

Answer 6

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

Answer 7

Chapter 39, Problem 1Q

Summary Introduction

To analyze:

The effect of environmental temperature on time to reach a Tb at 30°C and the effect of initial body temperature on the rate of rewarming.

Given:

The arctic ground squirrels were kept in the hibernating chambers by the researchers. These squirrels can build the burrows that can reach –10°C. The hibernating chambers in the laboratory were held at either +2°C or –12°C. It was observed that all the squirrels taken into consideration entered bouts of torpor repeatedly. The body temperatures (Tb) and the metabolic rates of individual squirrels were measured during the arousal time.

The table reports the mean values during the rewarming phase for metabolic rate and body temperature plus or minus (±) the standard error for the two groups of squirrels at the different ambient temperatures. An asterisk (*) indicates that the mean values were significantly different from each other.

Introduction:

Animals always keep the pace between its body temperature and environmental changes associated with it. They produce heat via metabolic activity and continuously evert the same into the surroundings. This adaptation helps them to stay warm even at the low temperature.

Answer 8

Expert Solution & Answer

Explanation of Solution

The environmental temperature affects the time to reach a Tb of 30°C as given in the graph. When the temperature of the surroundings drops down far beneath the working range of the cell, then more time is required to reach Tb. It takes times to dissipate the heat into the environment in order to achieve an optimal temperature inside the body for the normal physiological functioning of the cell.

The rate of rewarming gets easily affected by the initial body temperature. If the initial body temperature is near to the temperature against which the body has to be regulated, the time required will be too less than to achieve the regulatory temperature having a lot of marginal difference between its initial body temperature.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

It can be concluded that the endothermic animals react differently to the environmental temperature. The rate of rewarming gets affected by the initial body temperature.

Answer 12

Ch. 39.1 - Prob. 1R Ch. 39.1 - Prob. 2R Ch. 39.1 - Prob. 3R Ch. 39.2 - Prob. 1R Ch. 39.2 - Prob. 2R Ch. 39.2 - Prob. 3R Ch. 39.3 - Prob. 1R Ch. 39.3 - Prob. 2R Ch. 39.3 - Prob. 3R Ch. 39.4 - Prob. 1R

Explanation of Solution

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Chapter 39 Solutions